109139908 has 12 divisors (see below), whose sum is σ = 191074240. Its totient is φ = 54547272.

The previous prime is 109139897. The next prime is 109139917. The reversal of 109139908 is 809931901.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9913 + ... + 17791.

Almost surely, 2^109139908 is an apocalyptic number.

It is an amenable number.

109139908 is a deficient number, since it is larger than the sum of its proper divisors (81934332).

109139908 is a wasteful number, since it uses less digits than its factorization.

109139908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11346 (or 11344 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 40.

The square root of 109139908 is about 10447.0047382013. The cubic root of 109139908 is about 477.8899100470.

The spelling of 109139908 in words is "one hundred nine million, one hundred thirty-nine thousand, nine hundred eight".